/usr/include/libwildmagic/Wm5Vector4.h is in libwildmagic-dev 5.13-1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/10/01)
#ifndef WM5VECTOR4_H
#define WM5VECTOR4_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Tuple.h"
#include "Wm5Math.h"
namespace Wm5
{
template <typename Real>
class Vector4 : public Tuple<4,Real>
{
public:
// Construction.
Vector4 (); // uninitialized
Vector4 (const Vector4& vec);
Vector4 (const Tuple<4,Real>& tuple);
Vector4 (Real x, Real y, Real z, Real w);
// Assignment.
Vector4& operator= (const Vector4& vec);
Vector4& operator= (const Tuple<4,Real>& tuple);
// Coordinate access.
inline Real X () const;
inline Real& X ();
inline Real Y () const;
inline Real& Y ();
inline Real Z () const;
inline Real& Z ();
inline Real W () const;
inline Real& W ();
// Arithmetic operations.
inline Vector4 operator+ (const Vector4& vec) const;
inline Vector4 operator- (const Vector4& vec) const;
inline Vector4 operator* (Real scalar) const;
inline Vector4 operator/ (Real scalar) const;
inline Vector4 operator- () const;
// Arithmetic updates.
inline Vector4& operator+= (const Vector4& vec);
inline Vector4& operator-= (const Vector4& vec);
inline Vector4& operator*= (Real scalar);
inline Vector4& operator/= (Real scalar);
// Vector operations.
inline Real Length () const;
inline Real SquaredLength () const;
inline Real Dot (const Vector4& vec) const;
inline Real Normalize (const Real epsilon = Math<Real>::ZERO_TOLERANCE);
// Compute the axis-aligned bounding box of the points.
static void ComputeExtremes (int numVectors, const Vector4* vectors,
Vector4& vmin, Vector4& vmax);
// Special vectors.
WM5_MATHEMATICS_ITEM static const Vector4 ZERO;
WM5_MATHEMATICS_ITEM static const Vector4 UNIT_X; // (1,0,0,0)
WM5_MATHEMATICS_ITEM static const Vector4 UNIT_Y; // (0,1,0,0)
WM5_MATHEMATICS_ITEM static const Vector4 UNIT_Z; // (0,0,1,0)
WM5_MATHEMATICS_ITEM static const Vector4 UNIT_W; // (0,0,0,1)
WM5_MATHEMATICS_ITEM static const Vector4 ONE; // (1,1,1,1)
protected:
using Tuple<4,Real>::mTuple;
};
// Arithmetic operations.
template <typename Real>
inline Vector4<Real> operator* (Real scalar, const Vector4<Real>& vec);
// debugging output
template <typename Real>
std::ostream& operator<< (std::ostream& outFile, const Vector4<Real>& vec);
#include "Wm5Vector4.inl"
typedef Vector4<float> Vector4f;
typedef Vector4<double> Vector4d;
}
#endif
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